EP3290768B1 - Raccord en matériau d'alliage à mémoire de forme et ses utilisations - Google Patents
Raccord en matériau d'alliage à mémoire de forme et ses utilisations Download PDFInfo
- Publication number
- EP3290768B1 EP3290768B1 EP15890184.3A EP15890184A EP3290768B1 EP 3290768 B1 EP3290768 B1 EP 3290768B1 EP 15890184 A EP15890184 A EP 15890184A EP 3290768 B1 EP3290768 B1 EP 3290768B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connection
- tubing
- memory alloy
- corrosive
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims description 25
- 239000000463 material Substances 0.000 claims description 24
- 239000000956 alloy Substances 0.000 claims description 20
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 239000003989 dielectric material Substances 0.000 claims description 9
- 241000191291 Abies alba Species 0.000 claims description 6
- 235000004507 Abies alba Nutrition 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 239000010955 niobium Substances 0.000 claims description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000002955 isolation Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 21
- 239000000243 solution Substances 0.000 description 9
- 238000003466 welding Methods 0.000 description 8
- 239000001257 hydrogen Substances 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 229920000784 Nomex Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000004763 nomex Substances 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 238000004210 cathodic protection Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000003313 weakening effect Effects 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/02—Electrically insulating joints or couplings
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/04—Clamping or clipping connections
- F16B7/0406—Clamping or clipping connections for rods or tubes being coaxial
- F16B7/0426—Clamping or clipping connections for rods or tubes being coaxial for rods or for tubes without using the innerside thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/004—Shrunk pipe-joints
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/77—Use of a shape-memory material
Definitions
- the present invention refers to a connection for hydraulic tubing, using a shaped memory alloy material, notably used for subsea devices.
- SMA Silicon Memory Alloy
- SMA is an alloy which, when deformed, returns to its original shape if heated, "remembering" its original form.
- the metal When the shaped memory alloy is in its cold state, the metal may be folded or stretched in various shapes, which will be maintained until it is heated above the transition temperature. After heating, the shape changes, returning to the original.
- Said alloy has been used as a connection for tubes for coupling or junction in subsea environments, substituting the orbital welding process which is commonly used.
- Subsea Christmas trees are used in oil and gas fields.
- a subsea Christmas tree monitors and controls the production of a well, managing fluids and gases as injected into the well.
- Subsea Christmas trees have various tube connectors, requiring connections to be sufficiently efficient to avoid leakage.
- the orbital welding process is frequently used for the connection of hydraulic tubes, but there are a few problems during this process, including e. g. a special preparation of the tubes, use of specific machines to be employed for orbital welding, qualified staff, a complex welding procedure, post-welding preparation, visual inspection of X rays including the whole preparation process, a wide workspace and a huge time to perform the operation, among others.
- the shaped memory alloy represents a new solution for submerse tube coupling, since, besides reducing the problems as indicated above, it provides advantages such as:
- the patent EP 0632224B1 presents a solution for subsea couplings or connections embodied by means of a configuration comprising an anti-corrosive material around the tube, followed by the memory alloy covered by the same material of the tube, to avoid galvanic corrosion and weakening by hydrogen. That solution, despite using shaped memory alloy, has an inconvenience related to the requirement to perform material deposition over the shaped memory alloy, and that material should mandatorily have the same composition of the tube, since, if different, galvanic corrosion will occur and any fault in deposition will make the material susceptible to corrosion. Furthermore, special attention should be given to the thickness of the deposition of the shaped memory alloy material, to avoid the flexibility of movement of the relaxing material and its contraction from being compromised, which would damage the connection.
- connection using shaped memory alloy material of the present invention has been developed, which is used in subsea Christmas trees or any other subsea devices requiring tube coupling, even in the presence of corrosive water and a wide range of hydraulic fluids and chemicals, both in the internal and external environment of the tubes.
- an object of the invention is to provide a connection made of a shaped memory alloy material so to minimize all the inconveniences as mentioned above, besides providing for reduction in costs, assembly time and maintenance.
- Another object of the invention is to provide a connection with a memory alloy material which is especially appropriate for use in coupling subsea device tubes, which require better safety concerning the firmness of coupling and sealing leak-tightness, besides being applied under adverse conditions concerning the embodiment of the coupling itself, as well as care to be taken on the corrosive effects of those environments wherein tubes work and the fluids they transport.
- Another object of the invention is to provide a connection with a shaped memory alloy material which is resistant against weakening by hydrogen.
- An additional object of the invention is to provide a connection with a shaped memory alloy material which may be covered by a metal material which is more resistant against corrosion, depending on the application and work environment.
- Another object of the invention is to provide a connection with a shaped memory alloy material so to avoid weakening by hydrogen, since it is isolated from the cathodic protection, e. g. a dielectric material between the anti-corrosive material and the memory alloy material.
- connection object of the invention as well as its preferred way of embodiment, will be disclosed below with reference to the attached illustrative drawings, which represent, in a schematic and non-limitative form of its scope:
- a sleeve connection of a shaped memory alloy material (1) is provided, originally manufactured with its internal diameter (D1) shorter than the external diameter (D4) of said tubing (4).
- Said sleeve connection made of a shaped memory alloy material (1) internally has a covering material made of a dielectric material (2) and, more internally, a sleeve or layer (3) of an anti-corrosive material, e. g. Inconel®, which is a nickel-chrome material with the addition of molybdenum and niobium.
- Said layer (3) made of an anti-corrosive material is installed next to the external face of said tubing (4) and internally has protruding portions (5) designed to grasp the external surface of the tubing (4), forming streaks (6).
- the dielectric material layer (2) avoids the coupling to be related to cathodic protection. Therefore, the connection of the invention will not be damaged for being weakened by hydrogen. Under that configuration, the connection of a shaped memory alloy material (1) of the invention will not need to be covered or layered by any kind of corrosion resistant material, since there will be no problem related to the contact with seawater. It is also important to remark that the dielectric material layer (2) should have appropriate thickness, just to avoid rupture problems for the connection by mechanical efforts over the tube. Typically, the thickness of the dielectric material layer (3) may vary between 0.05 and 1.00 mm. Furthermore, in a few applications, covering may be applied over the connection made of shaped memory material (1) to provide protection to the connection against a possible unforeseen increase in potential (voltage), e. g. caused by the deposition of bacteria, creating a biofilm layer. Typical coverings for that additional protection are those based on polyolefin or similar.
- Figure 4 shows a connection made of a shaped memory alloy material (1) and tubing (4) assembled according to an embodiment of the invention and upon return to the normal working temperature, following the return to its original shape and the consequent compression over the tubing (4).
- connection of the invention will depend on the kind of isolating material.
- the material is Nomex®
- a connection is qualified to work at a temperature between about 0 °C and 60 °C for 25 years under subsea environment.
- connection for hydraulic tubing used in subsea devices by employing shaped memory alloy material of the invention has been submitted to various tests, such as gas sealing, pneumatics, hydrostatic explosion, hyberbaric, rotation and flexure, tension, high impact, thermal cycle and high temperature, being efficient and qualifying for application in the control of hydraulic lines of subsea equipment.
- the present test has consisted in immersing the tubes with the connection in a 3.5% NaCl solution under two different temperatures, 140 °C and 160 °C, and total pressure of 22.1 MPa (3200 psi). Firstly, the tubes have been put inside an autoclave with capacity for 8 liters of solution. A piece of loose paper Nomex®, the same as used to isolate the tube connection, has also been included.
- the autoclave was then filled in with the test solution.
- Autoclaves were closed, heated up to the test temperature (140 °C and 160 °C) and pressurized until 22.1 MPa (3200 psi) with N 2 .
- the test lasted 15 days and, after that time, samples have been taken from autoclaves for evaluation.
- the cathodic protection test consisted of a cathodic polarization of the connection + tube sets at -1.4V ECS after being taken from the ageing test, with the object to prove the lack of hydrogen bubbles over the connection.
- the test has been performed by using a 3.5% NaCl solution and a potentiostat trademark IVIUM® to apply the desired tension.
- a graphite electrode has been used as a counter electrode, and a saturated calomel electrode, as a reference electrode.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Organic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Earth Drilling (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Claims (8)
- Raccord en matériau d'alliage à mémoire, caractérisé en étant un raccord de manchon réalisé en un matériau d'alliage à mémoire de forme (1), fabriqué à l'origine avec un diamètre intérieur (D1) inférieur au diamètre extérieur (D4) du tube, ayant à l'intérieur un matériau de revêtement réalisé en un matériau diélectrique (2) et, le plus à l'intérieur, une couche d'un matériau anticorrosif (3) qui est contigue à la face extérieure dudit tube (4), ladite couche d'un matériau anticorrosif (3) ayant à l'intérieur des portions saillantes (5) conçues pour saisir la surface extérieure du tube (4), formant des bandes (6).
- Raccord selon la revendication 1, caractérisé par le revêtement intérieur de matériau diélectrique (2) comprenant un matériau de papier pour l'isolation électrique de type aramide ou un composé basé sur un recouvrement céramique.
- Raccord selon la revendication 1, caractérisé par le matériau anticorrosif (3) comprenant un matériau de nickel-chrome avec l'ajout de molybdène et de niobium, choisi en fonction du matériau du tube et de l'application de la pression de service.
- Raccord selon l'une quelconque des revendications 1 et 2, caractérisé par l'épaisseur de la couche de matériau diélectrique (3) étant dans la plage entre 0,05 et 1,00 mm.
- Raccord selon l'une quelconque des revendications précédentes, caractérisé par ledit raccord d'un matériau d'alliage à mémoire de forme (1) étant recouvert par un matériau de protection contre des augmentations de potentiel (tension).
- Raccord selon la revendication 5, caractérisé par le recouvrement étant réalisé avec de la polyoléfine.
- Utilisation du raccord selon les revendications 1 à 6, caractérisée en étant dans des arbres de Noël sous-marins ou d'autres dispositifs sous-marins quelconques nécessitant un couplage entre des tubes.
- Utilisation du raccord selon la revendication 7, caractérisée en étant dans des environnements en présence d'eau corrosive et de fluides et de produits chimiques hydrauliques, à la fois dans l'environnement intérieur et extérieur dudit tube (4).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/BR2015/050049 WO2016172772A1 (fr) | 2015-04-27 | 2015-04-27 | Raccord en matériau d'alliage à mémoire de forme et ses utilisations |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3290768A1 EP3290768A1 (fr) | 2018-03-07 |
EP3290768A4 EP3290768A4 (fr) | 2018-12-26 |
EP3290768B1 true EP3290768B1 (fr) | 2019-12-18 |
Family
ID=57197934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15890184.3A Active EP3290768B1 (fr) | 2015-04-27 | 2015-04-27 | Raccord en matériau d'alliage à mémoire de forme et ses utilisations |
Country Status (5)
Country | Link |
---|---|
US (1) | US10557579B2 (fr) |
EP (1) | EP3290768B1 (fr) |
BR (1) | BR112017014012B1 (fr) |
SG (1) | SG11201708107XA (fr) |
WO (1) | WO2016172772A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109184652A (zh) * | 2018-09-25 | 2019-01-11 | 中国石油天然气股份有限公司 | 形状记忆合金井筒再造连续油管底封重复压裂方法 |
CN109536968B (zh) * | 2018-12-21 | 2024-01-26 | 西安英柯迈信息技术有限公司 | 阴极保护导线与被保护体的免焊接安装装置及检测方法 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
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GB191500788A (en) * | 1915-01-18 | 1915-08-19 | John Elsden Martin | Improvements in and relating to Sights for Rifles. |
US3477750A (en) * | 1967-10-30 | 1969-11-11 | Jonathan S Powell | Pipe coupling and means and method of assembly |
US4379575A (en) * | 1973-10-09 | 1983-04-12 | Raychem Corporation | Composite coupling |
SE428596B (sv) * | 1975-04-09 | 1983-07-11 | Raychem Corp | Anordning for hopkoppling av substrat exv ror omfattande ett organ av minnesmetall |
US4198081A (en) * | 1973-10-29 | 1980-04-15 | Raychem Corporation | Heat recoverable metallic coupling |
US4092193A (en) * | 1975-06-30 | 1978-05-30 | Raychem Corporation | Method for joining substrates utilizing coupling means |
GB1518788A (en) * | 1975-07-22 | 1978-07-26 | Raychem Ltd | Heatrecoverable article |
US4135743A (en) * | 1976-01-22 | 1979-01-23 | Raychem Corporation | Heat recoverable coupling for tubing |
US4283079A (en) * | 1978-03-30 | 1981-08-11 | The United States Of America As Represented By The United States Department Of Energy | Ultra high vacuum seal arrangement |
US4226448A (en) * | 1979-01-16 | 1980-10-07 | Raychem Corporation | Heat-recoverable metallic couplings |
US4872713A (en) * | 1987-02-19 | 1989-10-10 | Raychem Corporation | Coupling device |
US4832382A (en) * | 1987-02-19 | 1989-05-23 | Raychem Corporation | Coupling device |
JPH0328319A (ja) * | 1989-06-26 | 1991-02-06 | Nisshin Steel Co Ltd | ステンレス鋼製のパイプ継手およびその製造法 |
US5174616A (en) * | 1989-07-14 | 1992-12-29 | Nkk Corporation | Pipe coupling using shape memory alloy |
JPH0322192U (fr) * | 1989-07-14 | 1991-03-06 | ||
JP2643502B2 (ja) * | 1989-12-20 | 1997-08-20 | 日本鋼管株式会社 | 管継手及び施工方法 |
JPH04272593A (ja) * | 1991-02-28 | 1992-09-29 | Toshiba Corp | 配管接続構造 |
US5338070A (en) * | 1991-07-31 | 1994-08-16 | Furukawa Electric Co., Ltd. | Diameter-reducing member joint device |
EP0632224B1 (fr) * | 1993-06-30 | 1998-11-25 | Hitachi, Ltd. | Raccord de tuyaux à alliage à mémoire pour tuyaux sous-marins |
US5662362A (en) * | 1995-11-13 | 1997-09-02 | Advanced Metal Components, Inc. | Swage coupling including disposable shape memory alloy actuator |
JP2004324677A (ja) * | 2003-04-22 | 2004-11-18 | Awaji Sangyo Kk | 金属部材の接合方法及び接合構造 |
CN203797184U (zh) * | 2014-04-14 | 2014-08-27 | 沈阳建筑大学 | 一种管道连接件的结构 |
-
2015
- 2015-04-27 BR BR112017014012-8A patent/BR112017014012B1/pt active IP Right Grant
- 2015-04-27 WO PCT/BR2015/050049 patent/WO2016172772A1/fr active Application Filing
- 2015-04-27 EP EP15890184.3A patent/EP3290768B1/fr active Active
- 2015-04-27 US US15/569,892 patent/US10557579B2/en active Active
- 2015-04-27 SG SG11201708107XA patent/SG11201708107XA/en unknown
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
BR112017014012B1 (pt) | 2021-11-23 |
BR112017014012A2 (pt) | 2018-01-02 |
US20180119856A1 (en) | 2018-05-03 |
SG11201708107XA (en) | 2017-11-29 |
US10557579B2 (en) | 2020-02-11 |
EP3290768A4 (fr) | 2018-12-26 |
WO2016172772A1 (fr) | 2016-11-03 |
EP3290768A1 (fr) | 2018-03-07 |
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